diff --git a/data/international-days.yaml b/data/international-days.yaml
index 652497c..b8a2bc5 100644
--- a/data/international-days.yaml
+++ b/data/international-days.yaml
@@ -163,6 +163,10 @@
   icon: 🧠
   date: 01-17
 
+- name: Den Pepka námořníka
+  icon: ⚓
+  date: 01-17
+
 - name: Den synonymického slovníku
   icon: 📚
   date: 01-18
diff --git a/lib/international-days.json b/lib/international-days.json
index bb414ce..6e8ae54 100644
--- a/lib/international-days.json
+++ b/lib/international-days.json
@@ -197,6 +197,11 @@
     "icon": "🧠",
     "date": "01-17"
   },
+  {
+    "name": "Den Pepka námořníka",
+    "icon": "⚓",
+    "date": "01-17"
+  },
   {
     "name": "Den synonymického slovníku",
     "icon": "📚",